870ITEC-AYFNZ FOXBORO 型号齐全 闪电发货

IC3600EPSU1L1B
IC3600EPSV1B
IC3600LRDJ1
IC3600LTDA1C
IC3600QIXB1
IC3600SFKK1B
IC3600SFPB1B
IC3600STKJ1C
IC3600QIXB1B
IC3600SFPB1B1B
IC3600EPSU1L1B

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描述

如果能限制偶发性故障的发生条件,如果能使PLC在恶劣环境中不受影响或能把影响的后果限制在最小范围,使PLC在恶劣条件消失后自动恢复正常,这样就能提高平均故障间隔时间;如果能在PLC上增加一些诊断措施和适当的保护手段,在永久性故障出现时,能很快查出故障发生点,并将故障限制在局部,就能降低PLC的平均修复时间。为此,各PLC的生产厂商在硬件和软件方面采取了多种措施,使PLC除了本身具有较强的自诊断能力,能及时给出出错信息,停止运行等待修复外,还使PLC具有了很强的抗干扰能力。

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